The three TRS-80 models had no less than 22 different fonts in total (top image), available in Rebecca Bettencourt’s font pack Another Mans Treasure. Shown here are the international fonts from TRS-80 Model 4, and Rebecca’s additions in the last image.
The Macrocom Method is a text mode trick for PC to use 16-colour hi-res graphics in CGA. The principle was to use only the top two pixel rows of each text character, and remove the rest. Image by VileR.